CN103095077A - Brushless direct current motor - Google Patents
Brushless direct current motor Download PDFInfo
- Publication number
- CN103095077A CN103095077A CN201210077133XA CN201210077133A CN103095077A CN 103095077 A CN103095077 A CN 103095077A CN 201210077133X A CN201210077133X A CN 201210077133XA CN 201210077133 A CN201210077133 A CN 201210077133A CN 103095077 A CN103095077 A CN 103095077A
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- rotor
- stator
- brshless
- motor
- motor shaft
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/22—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Motor Or Generator Frames (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses a brushless direct current motor. The brushless direct current motor comprises a shell, a front end cover, a back end cover, a motor shaft, a rotor, permanent magnets and stators. The front side of the shell is sleeved with the front end cover in a clamping mode, the back side of the shell is sleeved with the back end cover in a clamping mode, the motor shaft is connected inside the shell in a sleeved mode, one stator is fixed on the inner side of the front end cover, another stator is arranged on the inner side of the back end cover, the rotor is arranged on the outer sides of the two stators, and the permanent magnets respectively corresponding to the two stators are arranged on the inner wall of the rotor. According to the brushless direct current motor, rotation is smooth, internal vibration is low, noise decibel is low, and frequency switching sound and whistle are avoided.
Description
Technical field
The present invention relates to a kind of technical field of motors, specifically a kind of brshless DC motor.
Background technology
Direct current machine in the market probably has three kinds: 1. brush through-drive motor is arranged, 2. brushless through-drive motor, the 3. brushless outer driving motor that turns.And above three kinds of motors have shortcoming separately:
Although brush through-drive motor is arranged with the more cheap ferrite lattice of price, it is to complete by the conversion of carbon brush and commutator, and the carbon brush noise is large, the life-span is short, use and the maintenance cost of brush motor are large.
Brushless through-drive motor is because be the internal rotor transmission, and the torsion of its rotor is inadequate, needs to guarantee torsion with the very strong material ndfeb magnet of magnetic.And on market, the material price of existing neodymium iron boron is quite expensive, and its magnet cost is high like this.
Brushless outer transmission motor is generally fixed as two ends, and middle unsettled industry is used.If land use, need to increase the U-shaped bracket lock in the two end axles of stator in the heart.But this add U-shaped support mode new machine install and during electrical machmary maintenance on to unload driving-belt all pretty troublesome, and might accidentally damage motor during dismounting, so the kind motor scope of application is narrower.
Above-mentioned three direct current machine also has common fatal shortcoming except each own shortcoming:
No matter magnet cartridge is on rotor or on stator, it must be that N, S plate are adjacent alternately to same direction, and the gap necessarily arranged in the middle of adjacent two magnet, use when rotated the switching of N, S utmost point magnetic, have some setbacks when being bound to cause rotation, the problem that the card card is arranged, have the problem of internal vibration, shake when stressed, on technological layer in order to address these problems, only having under present circumstances increases the flywheel that balance is used, increase its inertia force by the weight of flywheel, the problem points that has some setbacks when eliminating above-mentioned rotation and block card will increase cost and increase flywheel.
Simultaneously, above-mentioned three direct current machine also has larger sound, the birdie frequently cut in use, the electric equipment products of these sound to indoor use, and it is all fatal particularly requiring the higher facility of quiet degree, product.Also can't solve fully aspect this at present, can only revise the magnet shape of adjacent N, S utmost point interface point as far as possible, the groove number of increase silicon steel sheet etc. makes up, but also can only tut be reduced as far as possible, can not very eliminate above-mentioned noise.
In addition, conventional motors structure in the market is that a rotor and stator form, and its silicon steel sheet and structures of copper lines are: copper cash is to move in the groove of silicon steel sheet, and after silicon steel sheet moves into copper cash, will become one airtight, seamless entity almost.and motor is under certain power, silicon steel sheet has certain-length, in operation process, because copper cash can generate heat, and and between the air gap of another rotor of matching or the magnet on stator and silicon steel sheet generally all very little, because air gap is little, heat energy on silicon steel sheet just is difficult to heat radiation so, and silicon steel sheet two end surfaces are because easily dispelling the heat with the large ratio of air contact area, and the heat radiation of close two end faces of the heat energy on the silicon steel sheet external diameter is also than being easier to, but the middle part is difficult to heat energy is dropped to ideal effect in the limited situation of air gap, in the time can not dropping to ideal effect, will wasted work because there being heat energy to have problems, the power of motor is just than normal power descend much lower (power can descend 15%～20% left and right).
although problem has the fan blade of adding to solve the cooling problem because the motor feels hot in the market, but when motor during at low-speed running, the air quantity of fan blade will be very low, heat dissipation problem still can not solve so, period is that motor turns round under the low speed and motor the most easily generates heat, because the inertia force when there is no High Rotation Speed during low speed is large, and during High Rotation Speed, inertia force due to rotation, the power of motor will increase, and when low speed, torsion will increase in order to guarantee to run well, wasted work will increase, just more easily heating of motor so, and the low speed fan blade is inoperative, motor will easily burn out because of heating cause so.
Although oblique slot type silicon steel sheet or oblique slot type magnet are arranged in the market, the oblique slot type silicon steel sheet is in silicon steel sheet stack and very difficult around copper cash the time, and operating efficiency is very low, and skewed slot magnet is all very difficult when processing and assembling.Moreover, also can't solve fully and cut frequently sound and birdie problem, so the oblique slot type structure is difficult to carry out batch production in the market, so two stators of the present invention have adjustability than the motor of doing stator or rotor with silicon steel sheet on market.And be whole fixing on market, be difficult to solve the technological difficulties that said motor perplexs.
Summary of the invention
The purpose of this invention is to provide a kind of brshless DC motor, overcome the above-mentioned deficiency of prior art, its smooth rotation, internal vibration is lower, and the noise decibel is low, and does not cut sound, birdie frequently.
In order to reach above-mentioned purpose of design, the technical solution used in the present invention is as follows:
A kind of brshless DC motor comprises shell, front end housing, rear end cap, motor shaft, rotor, permanent magnet, stator, described shell front side cutting ferrule front end housing, shell rear side cutting ferrule rear end cap; Socket motor shaft in described shell, the inboard fixed stator of described front end housing, another stator is fixed in described rear end cap inboard, the described two stators outsides are provided with a rotor, on described rotor inner wall with the two stators relative permanent magnet that is provided with respectively.
Preferably, described two stators shift to install, and stator dislocation angle is greater than the clearance distance between adjacent two permanent magnets.
Preferably, described front end housing inside lock stator holder, stator holder is enclosed within outside motor shaft, the solid stator of fixed seating outer wall cover, described rear end cap inside lock stator holder, stator holder is enclosed within outside motor shaft, solid another stator of fixed seating outer wall cover.
Preferably, described rotor is connected with motor shaft between two stators.
Preferably, described rotor mainly comprises rotor ring, fixed head, rotor ring is loop configuration, the rotor ring middle inside is welded and fixed plate, described two groups of permanent magnets share equally and are connected on the rotor ring inwall, two groups of permanent magnets are separately positioned on fixed head both sides, and the arrangement mode of the permanent magnet of fixed head homonymy is: the N utmost point of adjacent permanent magnet and the S utmost point are alternately to same direction.
More preferably, described fixed head is provided with ventilation hole, and the permanent magnet of ventilation hole and fixed head one side is relative and greater than the area of permanent magnet, the place, axle center of described fixed head is provided with trepanning, trepanning is fixed on the outer wall of adapter sleeve, and described adapter sleeve and fixed head pass through screw locking.
More preferably, described adapter sleeve middle part is provided with trepanning, trepanning sleeved electric arbor, and fixing by pin, and described adapter sleeve both sides are respectively equipped with the jump ring that fixes in the jump-ring slot of motor shaft, and the extension of described adapter sleeve is provided with breach.
More preferably, under described shell, middle side part is provided with the base with supporting role; The motor shaft end in the described front end housing outside is provided with step, is provided with the fan that is socketed on motor shaft outside described rear end cap.
More preferably, described front end housing and the rear end cap outer relative company of being provided with ear, front end housing are connected company's ear and are connected by connecting rod with rear end cap.
More preferably, be respectively equipped with ventilation hole on described front end housing and rear end cap.
The beneficial effect of brshless DC motor of the present invention is: smooth rotation, and the problem of card not during rotation, internal vibration is lower, and the noise decibel is low, does not cut sound, birdie frequently; The scope of application is very wide, particularly environmental noise is required the low facility of decibel.Product is compared with product of the same trade more advantage, as: indoor electric appliance product, medical equipment, body-building apparatus, blower fan industry, precision machine tool, indoor automatic equipment.
The brshless DC motor of this invention has solved the limitation that said motor uses, all well used aspect any scope and any facility, also make up simultaneously through-drive brush motor and through-drive brushless electric machine because of the large problem of internal rotor torque small band driving-axle gearing wasted work, also made up the inconvenient problem of landing of outer rotation brushless electric machine simultaneously.
An external rotor of the present invention and two brushless electric machines that stator forms, assemble effect except having easily to land, in the situation that equal volume, be somebody's turn to do outer rotating motor torsion larger more than 30% than through-drive brushless electric machine and through-drive carbon brush electric motor, and torsion increases, namely efficient increases, and the rate of attacking becomes large.If in same power consumption situation, the power of brushless electric machine of the present invention is also much larger.if under same power situation, the brushless electric machine volume of this patent will be little a lot, because volume is little, virtually save a lot of raw material, economize on resources to society, simultaneously, at torsion, in the same situation of power, magnet of the present invention can be with the ferrite of common material, and driven off by shaft brushless electric machine just must be with the Nd-Fe-B material of strong magnetic, and under the motor of same power the present invention that to use the magnet material be ferrite is cheaply more a lot of than in the market through-drive brushless electric machine epistasis magnet Nd-Fe-B material, its cost savings surpass more than 50%, although and existing market outer turns the above-mentioned advantage that brushless electric machine has us to invent, but its axle can not rotate, the use of landing is very difficult, so the outer brushless electric machine that turns that axle can not transmission is difficult to use in enormous quantities on market.
The present invention is because being two stators, if it is two that lower of same power needs the silicon steel sheet of original length is cut one, position comparatively airtight like this is relatively few a lot, and heat radiation position, former silicon steel sheet side only has two end faces in left and right, and after this stator changes two into, its left and right end face has the end face of four sides, radiating effect promotes a lot like this, moreover, middle airtight relative position lacks a lot than the length of the silicon steel sheet of former monolithic devices, few its radiating effect in so airtight position, good heat dissipation will increase radiating effect, and the wasted work rate will be lacked.
Two stators of silicon steel sheet that are equipped with of the present invention are than stator or the rotor of a whole silicon steel sheet, radiating effect will improve more than 50%, due to good heat dissipation, under same power, brushless electric machine of the present invention will improve more than 10% than other through-drive formula motor or the efficient of the fixing outer rotating motor of axle.
motor of the present invention is comprised of two stators, during assembling with tooth (armature tooth) dislocation of the silicon steel sheet of two stators a bit, like this, its dislocation distance is as long as surpass N, clearance distance between extremely adjacent two of S is just passable, as this coil and N on one side, when S is extremely tangent, the coil on one side can rotate not symmetrical with this when assembling on one side in addition, since asymmetric, so just can be when on one side tangent, also do not switch to mutually on one side in addition, can eliminate like this sound frequently of cutting in operation process, birdie, have some setbacks in the time of also can solving simultaneously rotation, shake, the problem of card card.
Although we become two stators with a stator design, just understanding down when rotated still to have and cutting sound frequently, just than original little sound a bit, but cut sound and the shake that moment stops, the torsionless conversion brings that cause when sound, shake frequently are motor rotation switching, but the present invention has solved the problem of sound, shake frequently of cutting fully, because as the stator of an end and magnet N, when the S utmost point switches, an other end has compensated in stressed rotation also that this end moment of causing when switching stops and the phenomenon of torsionless.And when the other end switched, it is stressed that this end has been crossed switching position so, and the deficiency when also compensating simultaneously other end switching is cut so sound, shake frequently and will be eliminated.And the direct current machine of a stator and a rotor or brushless electric machine just can't be accomplished this point.Because they are all a single integral body, are can't be freely regulated.And because stator or the rotor of the silicon steel sheet that stacks up is a straight trough, and magnet is because be that N, the S utmost point are alternately towards a direction assembling, necessarily have gap or the gap of a switching, cut like this that frequently sound, shake, birdie can't be eliminated, and two stators have just been broken through above-mentioned technological difficulties because can be adjustable.
Description of drawings
Fig. 1 is the stereogram of brshless DC motor of the present invention.
Fig. 2 is the front view of brshless DC motor of the present invention.
Fig. 3 is the longitudinal sectional view of brshless DC motor of the present invention.
Fig. 4 is the cutaway view of the rotor of brshless DC motor of the present invention.
Fig. 5 is the schematic diagram of the permanent magnet of brshless DC motor of the present invention.
The schematic diagram of the motor shaft of Fig. 6 brshless DC motor of the present invention, wherein the stage casing part is analysed and observe.
Fig. 7 is the left view of the described motor shaft of Fig. 6.
Fig. 8 is the longitudinal sectional view of the rear end cap of brshless DC motor of the present invention.
In figure: 1, shell; 2, base; 3, fan; 4, front end housing; 5, rear end cap; 6, connecting rod; 7, connect ear; 8, ventilation hole; 9, louvre; 10, motor shaft; 11, rotor; 11-1, rotor ring; 11-2, fixed head; 11-3, trepanning; 11-4, screwed hole; 11-5, ventilation hole; 12, permanent magnet; 13, stator; 14, pin; 15, screw; 16, step; 17, bearing; 18, adapter sleeve; 19, screwed hole; 20, trepanning; 21, breach; 22, stator holder; 23, screw; 24, jump ring.
Embodiment
Below in conjunction with accompanying drawing, optimum implementation of the present invention is described in further detail.
as shown in Fig. 1-3 and 8, the described brshless DC motor of the embodiment of the present invention, comprise shell 1, base 2, fan 3, front end housing 4, rear end cap 5, motor shaft 10, rotor 11, permanent magnet 12, stator 13, described shell 1 is the hollow cylinder body structure, shell 1 front side cutting ferrule front end housing 4, shell 1 rear side cutting ferrule rear end cap 5, described front end housing 4 and the rear end cap 5 outer relative company of being provided with ears 7, company's ear 7 that front end housing 4 is connected with rear end cap connects by connecting rod 6, by connecting rod 6, front end housing 4 and rear end cap 5 are locked at shell 1 both sides, land easy to use, be respectively equipped with ventilation hole 8 on described front end housing 4 and rear end cap 5, be conducive to heat radiation, 1 time middle side part of described shell is provided with the base 2 with supporting role, the interior socket motor shaft 10 of described shell 1, motor shaft 10 two ends are socketed in respectively the axle center of front end housing 4 and rear end cap 5 by bearing 17, motor shaft 10 ends in described front end housing 4 outsides are provided with step 16, described rear end cap 5 outsides are provided with the fan 3 that is socketed on motor shaft 10, described front end housing 4 is inboard by screw 23 locking stator holders 22, stator holder 22 is enclosed within outside motor shaft 10, the holder 22 solid stators 13 of cover outer wall cover, described rear end cap 5 is inboard by screw 23 locking stator holders 22, stator holder 22 is enclosed within outside motor shaft 10, holder 22 solid another stators 13 of cover outer wall cover, described two stator 13 outsides are provided with rotor 11, rotor 11 is connected with motor shaft 10 between two stators 13, rotate by rotor 11 drive motor axles 10, on described rotor 11 inwalls with the two stators 13 relative permanent magnet 12 that is provided with respectively.
Described two stators 13 shift to install, stator 13 dislocation angles are greater than the clearance distance between adjacent two permanent magnets 12, when this on one side coil and N, when S is tangent, in addition on one side coil can be when assembling rotation not symmetrical on one side with this since asymmetric, in the time of so just can be tangent on one side, also do not switch to mutually on one side in addition, can eliminate like this sound frequently of cutting in operation process, birdie has some setbacks, shakes, blocks the problem of blocking in the time of also can solving rotation simultaneously.
Described brshless DC motor also comprises the dc controlled driver, and it is outside or be locked on base 2 with the mode of extended line that the dc controlled driver is positioned at shell 1.
In formed cavity, hall circuitboard is installed between described rear end cap 5 and stator 13, Hall support, Hall element, two ends stator 13 circuit out is with on parallel way access peripheral driver.
as shown in Fig. 3-8, described rotor 11 mainly comprises rotor ring 11-1, fixed head 11-2, rotor ring 11-1 is loop configuration, rotor ring 11-1 middle inside is welded and fixed plate 11-2, described two groups of permanent magnets 12 share equally and are connected on rotor ring 11-1 inwall, two groups of permanent magnets 12 are separately positioned on fixed head 11-2 both sides, the quantity of the permanent magnet 12 of fixed head 11-2 homonymy can be 4, 6, 8, 12, the torsion of the permanent magnet 12 more motors of quantity is larger, can be according to using watt level to determine, the arrangement mode of the permanent magnet 12 of fixed head 11-2 homonymy is: the N utmost point of adjacent permanent magnet 12 and the S utmost point are alternately to same direction, during use, permanent magnet 12 can be with the more cheap ferrite of material, also can use neodymium iron boron.
Described fixed head 11-2 is provided with ventilation hole 11-5, the permanent magnet 12 of ventilation hole 11-5 and fixed head 11-2 one side is relative and greater than the area of permanent magnet 12, be convenient to fixed head 11-2 both sides ventilation, heat radiation, the place, axle center of described fixed head 11-2 is provided with trepanning 11-3, trepanning 11-3 is fixed on the outer wall of adapter sleeve 18, described adapter sleeve 18 is provided with four screwed holes 19, screwed hole 19 on adapter sleeve 18 locks on the screwed hole 11-4 on fixed head 11-2 by screw 15, thereby fixed head 11-2 and rotor ring 11-1 thereof are fixed on adapter sleeve 18.
Described adapter sleeve 18 middle parts are provided with trepanning 20, trepanning 20 sleeved electric arbors 10, and fixing by pin 14, make adapter sleeve 18 synchronize rotation with motor shaft 10, and can prevent that by pin 14 adapter sleeve 18 and motor shaft 10 from relatively rotating in radial direction, described adapter sleeve 18 both sides are respectively equipped with the jump ring 24 that fixes in the jump-ring slot of motor shaft 10, by jump ring 24 with adapter sleeve 18 in axial fixing, the extension of described adapter sleeve 18 is provided with breach 21, be conducive to fixed head 11-2 both sides ventilation by breach 21, be convenient to motor radiating.
This embodiment just is used for explanation the preferred embodiments of the present invention, can not limit the present invention.
Claims (10)
1. a brshless DC motor, comprise shell, front end housing, rear end cap, motor shaft, rotor, permanent magnet, stator, described shell front side cutting ferrule front end housing, shell rear side cutting ferrule rear end cap; Socket motor shaft in described shell is characterized in that: the inboard fixed stator of described front end housing, described rear end cap inboard are fixed another stator, and the described two stators outsides are provided with a rotor, on described rotor inner wall with the two stators relative permanent magnet that is provided with respectively.
2. brshless DC motor according to claim 1, it is characterized in that: described two stators shift to install, and stator dislocation angle is greater than the clearance distance between adjacent two permanent magnets.
3. brshless DC motor according to claim 2, it is characterized in that: described front end housing inside lock stator holder, stator holder is enclosed within outside motor shaft, the solid stator of fixed seating outer wall cover, described rear end cap inside lock stator holder, stator holder is enclosed within outside motor shaft, solid another stator of fixed seating outer wall cover.
4. brshless DC motor according to claim 3, it is characterized in that: described rotor is connected with motor shaft between two stators.
5. brshless DC motor according to claim 4, it is characterized in that: described rotor mainly comprises rotor ring, fixed head, rotor ring is loop configuration, the rotor ring middle inside is welded and fixed plate, described two groups of permanent magnets share equally and are connected on the rotor ring inwall, two groups of permanent magnets are separately positioned on fixed head both sides, and the arrangement mode of the permanent magnet of fixed head homonymy is: the N utmost point of adjacent permanent magnet and the S utmost point are alternately to same direction.
6. according to claim 1 and 2 or 3 or 4 described brshless DC motors, it is characterized in that: described fixed head is provided with ventilation hole, the permanent magnet of ventilation hole and fixed head one side is relative and greater than the area of permanent magnet, the place, axle center of described fixed head is provided with trepanning, trepanning is fixed on the outer wall of adapter sleeve, and described adapter sleeve and fixed head pass through screw locking.
7. according to claim 1 and 2 or 3 or 4 described brshless DC motors, it is characterized in that: be provided with trepanning in the middle part of described adapter sleeve, trepanning sleeved electric arbor, and fix by pin, described adapter sleeve both sides are respectively equipped with the jump ring that fixes in the jump-ring slot of motor shaft, and the extension of described adapter sleeve is provided with breach.
8. according to claim 1 and 2 or 3 or 4 described brshless DC motors, it is characterized in that: under described shell, middle side part is provided with the base with supporting role; The motor shaft end in the described front end housing outside is provided with step, is provided with the fan that is socketed on motor shaft outside described rear end cap.
9. according to claim 1 and 2 or 3 or 4 described brshless DC motors is characterized in that: described front end housing and the rear end cap outer relative company of being provided with ear, front end housing are connected company's ear and are connected by connecting rod with rear end cap.
10. according to claim 1 and 2 or 3 or 4 described brshless DC motors, is characterized in that: be respectively equipped with ventilation hole on described front end housing and rear end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210077133.XA CN103095077B (en) | 2011-10-27 | 2012-03-21 | Brshless DC motor |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110331220 | 2011-10-27 | ||
| CN201110331220.9 | 2011-10-27 | ||
| CN2011103312209 | 2011-10-27 | ||
| CN201210077133.XA CN103095077B (en) | 2011-10-27 | 2012-03-21 | Brshless DC motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103095077A true CN103095077A (en) | 2013-05-08 |
| CN103095077B CN103095077B (en) | 2016-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210077133.XA Active CN103095077B (en) | 2011-10-27 | 2012-03-21 | Brshless DC motor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103095077B (en) |
| WO (1) | WO2013060070A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6005886B1 (en) * | 2016-03-03 | 2016-10-12 | 株式会社エムリンク | Iron-free rotating electric machine including a stator having a cylindrical coil and its cooling method |
| WO2023139070A1 (en) * | 2022-01-21 | 2023-07-27 | Liebherr-Components Biberach Gmbh | Electrical multi-phase machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2181123Y (en) * | 1993-11-30 | 1994-10-26 | 钟宗勇 | Radiator for motor |
| CN2703355Y (en) * | 2004-04-06 | 2005-06-01 | 王冬雷 | Multi-stator and multiwinding brushless DC electric machine |
| CN101931292A (en) * | 2010-08-24 | 2010-12-29 | 山东山博电机集团有限公司 | Dual-stator and rotor brushless DC motor |
| CN102148551A (en) * | 2011-03-10 | 2011-08-10 | 高林发 | Two-in-one coaxial direct current brushless motor |
| CN202503413U (en) * | 2011-10-27 | 2012-10-24 | 东莞市万瑞电机有限公司 | Brushless direct current motor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH099602A (en) * | 1995-06-21 | 1997-01-10 | Toyoda Mach Works Ltd | Stepping motor |
| DE10147073A1 (en) * | 2001-09-25 | 2003-04-30 | Minebea Co Ltd | Electric motor, in particular electronically commutated direct current motor |
| CN100386954C (en) * | 2005-01-19 | 2008-05-07 | 南京航空航天大学 | Low torque ripple double salient pole motor |
| CN102170205B (en) * | 2010-02-25 | 2013-09-11 | 陈国宝 | Efficient permanent magnet generator with no-iron core and multiple stator |
-
2011
- 2011-12-16 WO PCT/CN2011/084111 patent/WO2013060070A1/en active Application Filing
-
2012
- 2012-03-21 CN CN201210077133.XA patent/CN103095077B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2181123Y (en) * | 1993-11-30 | 1994-10-26 | 钟宗勇 | Radiator for motor |
| CN2703355Y (en) * | 2004-04-06 | 2005-06-01 | 王冬雷 | Multi-stator and multiwinding brushless DC electric machine |
| CN101931292A (en) * | 2010-08-24 | 2010-12-29 | 山东山博电机集团有限公司 | Dual-stator and rotor brushless DC motor |
| CN102148551A (en) * | 2011-03-10 | 2011-08-10 | 高林发 | Two-in-one coaxial direct current brushless motor |
| CN202503413U (en) * | 2011-10-27 | 2012-10-24 | 东莞市万瑞电机有限公司 | Brushless direct current motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103095077B (en) | 2016-08-24 |
| WO2013060070A1 (en) | 2013-05-02 |
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Address after: 523797 Guangdong city of Dongguan province Dalang Zhen fo Zi Ao Cun Fu Zi Fumin Industrial Zone No. 10 concave area Applicant after: Guangdong Wanrui Electromechanical Technology Co., Ltd. Address before: 523797 Guangdong city of Dongguan province Dalang Zhen fo Zi Ao Cun Fu Zi Fumin Industrial Zone No. 10 concave area Applicant before: Dongguan Wanrui Motor Co., Ltd. |
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